olg-scratchpad/ucentral-client/rootfs/usr/share/ucentral/vyos/https_server_api.uc

// This provides support to call VyOS Https Server API's as per operation mode

let fs = require("fs");
function quoteForShell(s) {
    if (s == null)
        return "''";

    let parts = split(s, "'");
    return "'" + join("'\"'\"'", parts) + "'";
}

return{
   vyos_api_call: function(op_arg, op, host, key) {
    // Basic argument validation
    if (!key) {
        fprintf(stderr, "Missing API key\n");
        return null;
    }
    if (!host) {
        fprintf(stderr, "Missing host\n");
        return null;
    }
    if (!op) {
        fprintf(stderr, "Missing op\n");
        return null;
    }

    // Determine endpoint and payload based on op
    let endpoint;
    let payloadObj = { op: op };

    if (op == "load" || op == "merge") {
        endpoint = "/config-file";

        if (op_arg && op_arg.file) {
            payloadObj.file = op_arg.file;
        } else if (op_arg && op_arg.string) {
            payloadObj.string = op_arg.string;
        } else {
            fprintf(stderr, "Unsupported op_arg for op %s\n", op);
            return null;
        }

    } else if (op == "showConfig") {
        endpoint = "/retrieve";

        if (op_arg && op_arg.path) {
            payloadObj.path = op_arg.path;
        } else {
            // default: whole config
            payloadObj.path = [];
        }

    } else {
        fprintf(stderr, "Unsupported op: %s\n", op);
        return null;
    }

    // Convert payload to JSON string
    let payloadStr = sprintf("%J", payloadObj);
    let url        = host + endpoint;

    // Build the curl command
    let cmd = sprintf(
        "curl -skL --connect-timeout 3 -m 5 -X POST %s " +
        "--form-string data=%s --form key=%s",
        quoteForShell(url),
        quoteForShell(payloadStr),
        quoteForShell(key)
    );

    // Run curl and capture output
    let proc = fs.popen(cmd, "r");
    if (!proc) {
        fprintf(stderr, "Failed to start curl\n");
        return null;
    }

    let out = proc.read("all");
    proc.close();

    return out;
  }
};